James Nathaniel Brown (February 17, 1936 – May 18, 2023) was an American professional football player, civil rights activist, and actor. He played as a fullback for the Cleveland Browns of the Nationa
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02d085c34aa94ef8a11fb3a149a1af102d0d2152684dc93d678bbf9b126523b. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be7c9a71-2cc6-4120-abe0-7ebee24c2ab5.json and https://artists.proofprofile.net/proofs/artist/be7c9a71-2cc6-4120-abe0-7ebee24c2ab5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).